Toyota Corolla Cross: Parking Support Brake System

 Security Horn Circuit

DESCRIPTION When the theft deterrent system is switched from the armed state to the alarm sounding state, the main body ECU (multiplex network body ECU) transmits a signal to cause the security horn assembly to sound at intervals of 0.4 seconds. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE:

 Engine Coolant Bypass Valve Circuit Short to Ground (P268111,P268115)

DESCRIPTION The flow shutting valve (for heater control) used for the variable cooling system is a magnet type valve that is closed when the engine is warming up to prevent coolant from flowing through the heater passage which reduces engine warm up time. DTC No. Detection Item DTC Dete